One of my engineer colleagues owns a mid-1800's farmhouse, with a late 1800's wing to the rear. She hired me to design a second story sunroom and bathroom over the existing covered porch, which was being enclosed and converted into the new kitchen. The home's existing kitchen was converted into the dining room, and the existing dining room converted into a foyer.
The home had always been charming with lots of character, but the second floor of the late 1800's wing had no access from the original house, making it inconvenient and seldom used. Another problem with the home was that the existing kitchen was very dated, and the owner predicted that a very large masonry fireplace was concealed just behind her 1950's era cabinets. Now she's got this amazing dining room with a newly exposed historic fireplace that even contains the original pot hook.